IGCSE Physics Topic 1

A student determines the circumference of a golf ball. Which instrument gives a reading that is the circumference of the golf ball?

• calipers

• micrometer

• rule

• tape

Which quantity is a vector?

• energy

• force

• speed

• time

Is mass a scalar or a vector, and is acceleration a scalar or a vector?

• A

• B

• C

• D

The diameter and the length of a thin wire, approximately 50cm in length, are measured as precisely as possible. What are the best instruments to use?

• A

• B

• C

• D

Which quantity is a scalar?

• acceleration

• force

• temperature

• velocity

The diagram shows a micrometer scale.

• 5.64mm

• 7.14mm

• 7.16mm

• 7.64mm

A workman measures, as accurately as possible, the length and internal diameter of a straight copper pipe. The length is approximately 600cm and the internal diameter is approximately 2cm. What is the best combination of instruments for the workman to use?

• A

• B

• C

• D

Which device can be used to measure the thickness of a single sheet of paper?

• a metre rule

• a micrometer

• a plastic ruler

• a measuring tape

A length of copper pipe, of uniform cross-section and several metres long, carries water to a tap.

Measurements are taken to determine accurately the volume of copper in the pipe. Which instruments are used?

• calipers and micrometer

• micrometer and rule

• rule and tape

• tape and calipers

A manufacturer measures accurately the dimensions of a wooden floor tile. The approximate dimensions of the tile are shown.

• A

• B

• C

• D